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前言

整合springBoot+shiro流程：

1. 环境准备
2. 身份认证
   2.1 密码加密
   2.2 非法请求控制
3. 授权，鉴权

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一、springBoot+shiro环境准备

项目目录：

1.数据库

认证框架五表设计：
准备user用户表、user_role用户角色关系表、role角色表、 role_permission角色权限关系表、permission权限表；
user用户表：

user_role用户角色关系表：

role角色表：

role_permission角色权限关系表：

permission权限表：

2.ssmp环境搭建

2.1准备依赖

		<!--web启动器--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--test启动器--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!--Mysql--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.29</version><scope>runtime</scope></dependency><!--Mybatisplus--><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.4.3</version></dependency><!--lombok作用于实体类--><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><!--shiro相关坐标--><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-core</artifactId><version>${shiro.version}</version></dependency><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-spring</artifactId><version>${shiro.version}</version></dependency><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-web</artifactId><version>${shiro.version}</version></dependency><dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-ehcache</artifactId><version>${shiro.version}</version></dependency>

2.2 配置Yaml文件

#数据源配置
spring:datasource:driver-class-name: com.mysql.cj.jdbc.Driverusername: rooturl: jdbc:mysql://localhost:3306/shiro?serverTimezone=GMTpassword: 12345678
#Mybatisplus配置
mybatis-plus:configuration:map-underscore-to-camel-case: truelog-impl: org.apache.ibatis.logging.stdout.StdOutImpl

3.实体类

User用户类：

@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("pe_user")
public class User implements Serializable {@TableId(value = "id",type = IdType.NONE)private String id;@TableField(value = "username")private String username;@TableField(value = "password")private String password;@TableField(value = "salt")private String salt;@TableField(exist = false)private Set<Role> roles;
}

role角色类：

@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("pe_role")
public class Role implements Serializable {private  String id;private  String name;private  String code;private  String description;private Set<Permission> permissions;
}

Permission 权限类：

@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("pe_permission")
public class Permission implements Serializable {private  String id;private  String name;private  String code;private  String escription;
}

4.三层搭建

DAO层： 因为是五表构造，需要处理关联关系，所以在这里使用级联查询的方式实现：
UserMapper ：

@Mapper
public interface UserMapper extends BaseMapper<User> {@Select("select * from pe_user where username =#{username}")User findByName(String name);@Select("select * from pe_user where id =#{id}")@Results({@Result(id = true,property = "id",column = "id"),@Result(property = "username",column = "username"),@Result(property = "password",column = "password"),@Result(property = "salt",column = "salt"),@Result(property = "roles",column = "id",many = @Many(select = "com.apesource.springboot_shiro_01.dao.RoleMapper.findRoleById"))})User findUserDetailById(int id);
}

RoleMapper ：

@Mapper
public interface RoleMapper {@Results({@Result(column = "id", property = "id"),@Result(column = "name", property = "name"),@Result(column = "code", property = "code"),@Result(column = "description", property = "description"),@Result(column = "id",property = "permissions",many = @Many(select = "com.apesource.springboot_shiro_01.dao.PermissionMapper.findPermissionById"))})
//    @Select("select  *  from 角色表 where 角色id in (select 角色ID from 关系表 where 用户id = ？)")@Select("select  *  from pe_role where id in (select role_id from pe_user_role where user_id = #{id})")public Set<Role> findRoleById(String id);
}

PermissionMapper ：

@Mapper
public interface PermissionMapper {@Select("select  *  from pe_permission where id in (select permission_id from pe_role_permission where role_id = #{id})")@Results({@Result(column = "id", property = "id"),@Result(column = "name", property = "name"),@Result(column = "code",property = "code"),@Result(column = "description", property = "description")})public Set<Permission> findPermissionById(long id);
}

Service层： 因为项目只实现Shrio的用户认证和授权，所以只构造User的业务层就足够了。
UserService ：

@Service
public class UserService {@Autowired(required = false)UserMapper mapper;public User findByName(String name){return mapper.findByName(name);}public User findUserDetailById(int id){return mapper.findUserDetailById(id);}
}

Controller层：

@RestController
public class ShiroController {@AutowiredUserService service;/*** @RequiresPermissions()  -- 访问此方法必须具备的权限*  @RequiresRoles()        -- 访问此方法必须具备的角色**/@RequiresPermissions("user-home")@RequestMapping(value = "/user/home")public String home() {return "访问个人主页成功";}//添加@RequiresPermissions("user-add")@RequestMapping(value = "/user",method = RequestMethod.POST)public String add() {return "添加用户成功";}//查询@RequiresPermissions("user-find")@RequestMapping(value = "/user/find",method = RequestMethod.GET )public String find(){return "查询成功";}//更新@RequiresPermissions("user-update")@RequestMapping(value = "/user/{id}",method = RequestMethod.PUT)public String update(@PathVariable String id) {return "更新用户成功";}//删除@RequiresPermissions("user-delete")@RequestMapping(value = "/user/{id}",method = RequestMethod.DELETE)public String delete(@PathVariable String id) {return "删除用户成功";}//未登陆与未授权页面@RequestMapping(value="/autherror")public String autherror() {return "未登录";}//用户登录@RequestMapping(value="/login")public String login(User user) {try {//1.构造登录令牌UsernamePasswordToken upToken = new UsernamePasswordToken(user.getUsername(),user.getPassword());//2.获取subjectSubject subject = SecurityUtils.getSubject();//3.调用subject进行登录subject.login(upToken);return "登录成功";}catch (Exception e) {e.printStackTrace();return "用户名或密码错误";}}
}

5.初始化测试数据

因为在实战场景下，数据库的密码是不可以明文保存的，这样对于数据的安全性是巨大的隐患，而shiro也支持数据加密的功能。
加密工具类：

public class DigestUtil {//算法方式public static final String SHA1 = "SHA-1";public static final String SHA256 = "SHA-256";//加密次数public static final Integer Counts =369;/*** @Description show* @param input 需要散列字符串* @param salt 盐字符串* @return*/public static String show(String input,String salt){return new SimpleHash(SHA1,input,salt,Counts).toString();}/*** @Description 随机获得salt字符串* @return*/public static String generateSalt(){SecureRandomNumberGenerator randomNumberGenerator =new SecureRandomNumberGenerator();return randomNumberGenerator.nextBytes().toHex();}/*** @Description 生成密码字符密文和salt密文* @param* @return*/public static Map<String,String> entryptPassword(String passwordPlain){Map<String,String> map = new HashMap<>();String salt =generateSalt();String password = show(passwordPlain,salt);map.put("salt",salt);map.put("明文password",passwordPlain);map.put("密文密码",password);return map;}

由于没有实现注册功能，所以对于数据库的密文密码通过自己操作工具类输入进去：

    public static void main(String[] args) {String name ="张三丰";String password = "123123";Map<String, String> map = entryptPassword(password);System.out.println(map.toString());}

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二、Shiro过滤器

Shiro内置了很多默认的过滤器，比如身份验证、授权等相关的，shiro也是通过过滤器的原理来实现认证和授权的扩展功能的。

1.Shiro认证过滤器

2.Shiro授权过滤器

三、springBoot+shiro身份认证

1.创建Realm,重写认证方法doGetAuthenticationInfo

使用@PostConstruct注解修饰的init方法就会在Spring容器的启动时自动的执行

public class MyRealm extends AuthorizingRealm {@AutowiredUserService service;/*** @Description 自定义密码比较器* bean标签 init-method属性*/@PostConstructpublic void initCredentialsMatcher() {//指定密码算法HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher(DigestUtil.SHA1);//指定迭代次数hashedCredentialsMatcher.setHashIterations(DigestUtil.Counts);//生效密码比较器setCredentialsMatcher(hashedCredentialsMatcher);}
}//认证@Overrideprotected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {//1.获取登录的用户名密码（token）UsernamePasswordToken token = (UsernamePasswordToken)authenticationToken;String username = token.getUsername();//2.根据用户名查询数据库User user  = service.findByName(username);//3.判断用户是否存在或者密码是否一致if(user==null){throw new UnknownAccountException("账户不存在");}//4.如果一致返回安全数据//通过SimpleAuthenticationInfo校验数据//构造方法：安全数据，密码(匿名)，混淆字符串(salt),realm域名return new SimpleAuthenticationInfo(user.getId(),user.getPassword(), ByteSource.Util.bytes(user.getSalt()),"MyRealm");}

2.创建shiro配置类

shiro配置类需要配置八个步骤，比较繁琐，最重要的是shiroFilter过滤器，用于实现非法请求的处理。

@Configuration
public class ShiroConfiguration {/*** 1.创建shiro自带cookie对象*/@Beanpublic SimpleCookie sessionIdCookie(){SimpleCookie simpleCookie = new SimpleCookie();simpleCookie.setName("ShiroSession");return simpleCookie;}//2.创建realm@Beanpublic MyRealm getRealm() {return new MyRealm();}/*** 3.创建会话管理器*/@Beanpublic DefaultWebSessionManager sessionManager(){DefaultWebSessionManager sessionManager = new DefaultWebSessionManager();sessionManager.setSessionValidationSchedulerEnabled(false);sessionManager.setSessionIdCookieEnabled(true);sessionManager.setSessionIdCookie(sessionIdCookie());sessionManager.setGlobalSessionTimeout(3600000);return sessionManager;}//4.创建安全管理器@Beanpublic DefaultWebSecurityManager defaultWebSecurityManager() {DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();securityManager.setRealm(getRealm());securityManager.setSessionManager(sessionManager());return securityManager;}/*** 5.保证实现了Shiro内部lifecycle函数的bean执行*/@Bean(name = "lifecycleBeanPostProcessor")public static LifecycleBeanPostProcessor getLifecycleBeanPostProcessor() {return new LifecycleBeanPostProcessor();}/*** 6.开启对shiro注解的支持*   AOP式方法级权限检查*/@Bean@DependsOn("lifecycleBeanPostProcessor")public DefaultAdvisorAutoProxyCreator getDefaultAdvisorAutoProxyCreator() {DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator = new DefaultAdvisorAutoProxyCreator();defaultAdvisorAutoProxyCreator.setProxyTargetClass(true);return defaultAdvisorAutoProxyCreator;}/*** 7.配合DefaultAdvisorAutoProxyCreator事项注解权限校验*/@Beanpublic AuthorizationAttributeSourceAdvisor getAuthorizationAttributeSourceAdvisor() {AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor();authorizationAttributeSourceAdvisor.setSecurityManager(defaultWebSecurityManager());return authorizationAttributeSourceAdvisor;}//8.配置shiro的过滤器工厂再web程序中，shiro进行权限控制全部是通过一组过滤器集合进行控制@Beanpublic ShiroFilterFactoryBean shiroFilter() {//1.创建过滤器工厂ShiroFilterFactoryBean filterFactory = new ShiroFilterFactoryBean();//2.设置安全管理器filterFactory.setSecurityManager(defaultWebSecurityManager());//3.通用配置（跳转登录页面，为授权跳转的页面）filterFactory.setLoginUrl("/autherror");//跳转url地址//4.设置过滤器集合//key = 拦截的url地址//value = 过滤器类型Map<String,String> filterMap = new LinkedHashMap<>();//key：请求规则   value：过滤器名称filterMap.put("/login","anon");//当前请求地址可以匿名访问filterMap.put("/user/**","authc");//当前请求地址必须认证之后可以访问//在过滤器工程内设置系统过滤器filterFactory.setFilterChainDefinitionMap(filterMap);return filterFactory;}
}

3.Postman测试

成功：

合法请求资源：

失败：

非法请求资源：

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四、springBoot+shiro授权，鉴权

1.重写授权方法doGetAuthenticationInfo

授权方法：
操作的时候，判断用户是否具有响应的权限
一定先认证再授权
先认证 – 安全数据
再授权 – 根据安全数据获取用户具有的所有操作权限

//授权@Overrideprotected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {//1.获取已认证的用户数据String id1 = (String) principalCollection.getPrimaryPrincipal();int i = Integer.parseInt(id1);User user = service.findUserDetailById(i);//2.根据用户数据获取用户的权限信息（所有角色，所有权限）Set<String> roles = new HashSet<>();//所有角色Set<String> perms = new HashSet<>();//所有权限for (Role role : user.getRoles()) {roles.add(role.getName());for (Permission perm : role.getPermissions()) {perms.add(perm.getCode());}}//将角色和权限信息返回SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();info.setStringPermissions(perms);info.setRoles(roles);return info;}

2.访问程序资源(鉴权)

注解实现：直接在控制器接口上加注解即可；
注解实现权限：如果权限信息不匹配，抛出异常(则使用异常处理器解决)；
常用注解：
@RequiresPermissions – 访问此方法必须具备的权限
@RequiresRoles – 访问此方法必须具备的角色
@RequiresAuthentication – 表明当前用户需是经过认证的用户
@ RequiresGuest --表明该用户需为”guest”用户
@ RequiresUser – 当前用户需为已认证用户或已记住用户

具体实现在controller层的每个业务接口，这里只举例一个：

	//个人主页@RequiresPermissions("user-home")@RequestMapping(value = "/user/home")public String home() {return "访问个人主页成功";}@RequiresPermissions("user-add")//参数:对应权限的code值@RequestMapping(value = "/user",method = RequestMethod.POST)public String add() {return "添加用户成功";}

3.全局异常处理器

专门用于处理权限不足的异常信息：

@ControllerAdvice
public class BaseExceptionHandler {@ExceptionHandler(value = AuthorizationException.class)@ResponseBodypublic String error(HttpServletRequest request, HttpServletResponse response, AuthorizationException e) {return "未授权-异常处理器实现";}
}

4.Postman测试

张三丰用户只有user-home权限，没有add权限；

1.直接访问权限方法会被拦截做登录：

2.访问有权限的资源
成功

3.访问没有权限的资源
失败，被全局异常处理器处理。

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